Catalytic Degradation of LDPE and PP over MCM-49 Based Micro-Mesoporous Composites
Catalytic Degradation of LDPE and PP over MCM-49 Based Micro-Mesoporous Composites
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MCM-49 基微介孔复合材料催化降解 LDPE 和 PP
DOI：
10.1007/s10562-014-1205-9
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发表时间：
2014
影响因子：
2.8
通讯作者：
Xu Longya
中科院分区：
文献类型：
--
作者：
Gao Ningning;Xie Sujuan;Liu Shenglin;An Jie;Zhu Xiangxue;Hu Linyan;Wei Huijuan;Li Xiujie;Xu Longya
摘要通过对MCM-49进行后处理，制备了微孔-介孔复合材料，并将其应用于降解低密度聚乙烯（LDPE）和聚丙烯。结果表明，LDPE的降解主要发生在MCM-49的外表面。在具有大的外表面积和相对高的酸中心浓度的样品上实现了最高的活性。LDPE降解的主要产物是液化石油气和汽油烃类，产物选择性取决于酸中心浓度。
AbstractMicro–mesoporous composites were prepared by post-treatment of MCM-49, and applied to degrade low-density polyethylene (LDPE) and polypropylene. It was found that LDPE degradation mainly occurred on the external surface of MCM-49. The highest activity was achieved over the sample with large external surface area and relatively high acid site concentration. The main products of LDPE degradation were liquefied petroleum gas and gasoline range hydrocarbons, and the product selectivity depended on the acid site concentration.Graphical Abstract